////
//// Created by Darwin Yuan on 2020/8/2.
////
//
//#ifndef NANO_CAF_UNIT_H
//#define NANO_CAF_UNIT_H
//
//#include <nano-caf/nano-caf-ns.h>
//
//NANO_CAF_NS_BEGIN
//
//struct unit_t {
//   constexpr unit_t() = default;
//   auto operator==(const unit_t&) const -> bool { return true; }
//   auto operator!=(const unit_t&) const -> bool { return false; }
//};
//
//inline unit_t unit{};
//
//NANO_CAF_NS_END
//
//#endif //NANO_CAF_UNIT_H
